The race-worthy Diadora Vortex Racer offers a winning combination of fit and performance. The special design of the extremely thin, composite-reinforced sole provides rigidity and comfort with no loss of power to keep you on the attack. The sole's patented NET Breathing System™ employs a combination of synthetic fiber mesh and waterproof membrane to create maximum ventilation. This special sole lets heat and moisture escape while preventing mud and other external elements from entering. All day comfort, arch support and moisture management are enhanced with breathable insoles. Easy-to-adjust Boa lacing system and Velcro strap closure work together to provide a snug, comfortable fit. 259g.